Even though nitrogen constitutes 78% of Earth's atmosphere, the amount available for living things nearly all comes from nitrogen-containing fertilizers. a few groups of nitrogen-fixing bacteria. the breakdown of dead plants. the breakdown of minerals. a few genera of detritivores.
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Biology, 22.06.2019 10:00
In one or two well-crafted paragraphs in your laboratory journal, summarize the process in which normal cells become cancer cells. your paragraph(s) must include each of the terms listed below. underline each term in your writing:
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Biology, 22.06.2019 21:00
Some steps in cell division are shown below: 1. chromosomes condense and pair up 2. segments of dna of sister chromatids twist and cross 3. exchange of dna occurs between chromosomes 4. four daughter cells are created that are haploid which of the following steps is least likely to occur during meiosis 1?
Answers: 1
Even though nitrogen constitutes 78% of Earth's atmosphere, the amount available for living things n...
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